gistfile1.py

class XbeeCableModem(object):
    def __init__(self, ip, user="user", passwd="user"):
		self.ip = ip
		self.user = user
		self.passwd = passwd

	def _get_body_for_page(self, page):
		url = "http://{}/{}.asp".format(self.ip, page)
		r = requests.get(url, auth=(self.user, self.passwd))
		doc = html.fromstring(r.text)
		body = doc.xpath("//comment()[. = '------------START MAIN BODY HERE--------------------']/following-sibling::*[1]")

		if not body:
			### Raise a better exception
			raise Exception
		return body[0]
    def get_downstream(self):
		for row in self._get_body_for_page("CmDnstream").xpath(".//table/tr"):
			heading = row.xpath('.//td[1]')[0].text_content()

			if isinstance(heading, str):
				heading = heading.strip()

			if heading:
				print heading
                
if __name__ == '__main__':
    modem = XbeeCableModem("192.168.100.1")
	modem.get_downstream()

gistfile2.txt

Frequency
Lock Status 
    																(QAM Lock/FEC Sync/MPEG Lock)
Channel Id
Modulation
Symbol Rate 
																	(Msym/sec)
Interleave Depth
RxMER (dB)
CorrectableCodewords
UncorrectableCodewords

Input snippit

<tr>
    <td align="left"><font size="2"><b>Lock Status <br>
    (QAM Lock/FEC Sync/MPEG Lock)</b></font></td>
	<td align="left"><font size=2>Y/Y/Y</font></td><td align="left"><font size=2>Y/Y/Y</font></td><td align="left"><font size=2>Y/Y/Y</font></td><td align="left"><font size=2>Y/Y/Y</font></td>
</tr>